Laser beam-combining engine



FIG. 1 is a perspective view of a laser beam-combining engine incorporating the design and including internal locations for one, two, three, or four laser resonators;

FIG. 2 is a left-side elevation view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a right-side elevation view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is another perspective view thereof. 

CLAIM The ornamental design for a laser beam-combining engine, substantially as shown and described. 